ATSAML22G16A-MUT - 32MHz Cortex-M0+ MCU 64KB Flash | Microchip
N.º da peça: ATSAML22G16A-MUT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.85 | $3,85 |
| 10 | $3.46 | $34,60 |
| 100 | $3.08 | $308,00 |
| 500 | $2.77 | $1.385,00 |
| 1.000 | $2.45 | $2.450,00 |
ATSAML22G16A-MUT Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The SAM L22 family sits in Microchip's ultra-low-power MCU portfolio, optimized for battery-powered and energy-harvesting applications. The Cortex-M0+ core is the smallest and most energy-efficient ARM core, making it the right choice when deterministic real-time response and long battery life outweigh raw computational throughput. The SAM L22 belongs to the power management MCU segment, sitting hierarchically between 8-bit MCUs (e.g., PIC16) and higher-end Cortex-M4/M7 families (e.g., SAME70).
Key features include segmented LCD support (up to 8x40 segments with on-chip charge pump), a 12-bit ADC with oversampling, multiple SERCOM interfaces configurable as UART/SPI/I2C, a full-speed USB 2.0 device/host with embedded PHY, an ISO 7816 smart-card interface, and an integrated PTC (Peripheral Touch Controller) for capacitive touch sensing. The device is AEC-Q100 qualified, making it automotive-ready.
Architecturally, the SAM L22 uses an event-driven SERCOM system and SleepWalking peripherals that allow the CPU to remain in deep sleep until a peripheral triggers an interrupt, dramatically reducing system-level power. The 39 µA/MHz active figure and 490 nA backup figure are enabled by dedicated low-power voltage regulators and an ultra-low-power RTC on a separate power domain.
Typical applications include IoT sensor nodes, smart metering, wearable fitness bands, electronic shelf labels, industrial HMI with LCD, automotive body controllers, and battery-powered medical devices such as glucose meters. Designers should consider this MCU when sub-1 µA standby current and segment-LCD support are required without moving to a Cortex-M4 class device. This page consolidates distributor pricing, drop-in package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternativas drop-in para ATSAML22G16A-MUT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATSAML22G16A-MUT (mesmo formato e footprint) — diferindo em Package, Operating Temperature, USB, ADC, Active Current.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATSAML22G17A-MUT
✅ Drop-In✓ Em estoque
$2.21 / unidade
Ver ficha técnica →ATSAML22G18A-MUT
✅ Drop-In✓ Em estoque
$2.68 / unidade
Ver ficha técnica →ATSAML22G16A-AUT
✅ Drop-In✓ Em estoque
$2.96 / unidade
Ver ficha técnica →ATSAML21G16B-MUT
✅ Drop-In✓ Em estoque
$2.16 / unidade
Ver ficha técnica →ATSAML10E16A-MUT
✅ Drop-In✓ Em estoque
$1.42 / unidade
Ver ficha técnica →ATSAML11D16A-MFT
✅ Drop-In✓ Em estoque
$2.51 / unidade
Ver ficha técnica →ATSAMG55J19B-MUT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.74 / unidade
Ver ficha técnica →ATSAML22G16A-MUT Classificações máximas e características elétricas
| Core Architecture | ARM Cortex-M0+ |
| CPU Bit Width | 32-bit |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 64 KB (64K x 8) |
| SRAM | 8 KB |
| Supply Voltage (VDD) | 1.6 V to 3.6 V |
| Active Current (CoreMark) | 39 µA/MHz |
| Backup Mode Current (RTC) | 490 nA |
| Temperatura de operação | -40C to +85C |
| Encapsulamento | 48-pin QFN (7x7 mm) with exposed pad |
| Tipo de montagem | Surface Mount |
| Nível MSL | 3 (168 hours) |
| Status RoHS | Compliant |
| Lead-Free | Yes |
| AEC-Q100 | Qualified |
| Carrier Type | Tape & Reel |
| Crypto Accelerator | AES 256-bit |
| LCD Controller | Up to 8x40 segments |
| USB | USB 2.0 Full-Speed device/host |
| Touch Sensor | Peripheral Touch Controller (PTC) |
Configuração de pinos do ATSAML22G16A-MUT
| Pino 1 | PA00 — GPIO / XIN (external clock input) |
| Pino 2 | PA01 — GPIO / XOUT (external clock output) |
| Pino 3 | PA02 — GPIO / ADC AIN0 / DAC VOUT |
| Pino 4 | PA03 — GPIO / ADC AIN1 / REF VREFA |
| Pino 5 | GND — Ground |
| Pino 6 | VDD — Digital supply voltage |
| Pino 7 | PA04 — GPIO / SERCOM0 PAD0 |
| Pino 8 | PA05 — GPIO / SERCOM0 PAD1 |
| Pino 9 | PA06 — GPIO / SERCOM0 PAD2 |
| Pino 10 | PA07 — GPIO / SERCOM0 PAD3 |
| Pino 11 | PA08 — GPIO / SERCOM1 PAD0 / USB DP |
| Pino 12 | PA09 — GPIO / SERCOM1 PAD1 / USB DM |
| Pino 13 | PA10 — GPIO / SERCOM2 PAD0 |
| Pino 14 | PA11 — GPIO / SERCOM2 PAD1 |
| Pino 15 | PA12 — GPIO / SERCOM2 PAD2 |
| Pino 16 | PA13 — GPIO / SERCOM2 PAD3 |
| Pino 17 | PA14 — GPIO / SERCOM3 PAD0 |
| Pino 18 | PA15 — GPIO / SERCOM3 PAD1 |
| Pino 19 | PA16 — GPIO / SERCOM3 PAD2 / I2S SCK |
| Pino 20 | PA17 — GPIO / SERCOM3 PAD3 / I2S FS |
| Pino 21 | PA18 — GPIO / SERCOM4 PAD0 |
| Pino 22 | PA19 — GPIO / SERCOM4 PAD1 |
| Pino 23 | PA20 — GPIO / SERCOM4 PAD2 |
| Pino 24 | PA21 — GPIO / SERCOM4 PAD3 |
| Pino 25 | PA22 — GPIO / SERCOM5 PAD0 |
| Pino 26 | PA23 — GPIO / SERCOM5 PAD1 |
| Pino 27 | PA24 — GPIO / USB SOF 1kHz |
| Pino 28 | PA25 — GPIO / USB VBUS |
| Pino 29 | GND — Ground |
| Pino 30 | VDD — Digital supply voltage |
| Pino 31 | PA26 — GPIO / ADC AIN2 |
| Pino 32 | PA27 — GPIO / ADC AIN3 |
| Pino 33 | PA28 — GPIO / ADC AIN4 / BOD VIN |
| Pino 34 | PA29 — GPIO / ADC AIN5 |
| Pino 35 | PA30 — GPIO / SWCLK (programming clock) |
| Pino 36 | PA31 — GPIO / SWDIO (programming data) |
| Pino 37 | PB00 — GPIO / LCD SEG0 |
| Pino 38 | PB01 — GPIO / LCD SEG1 |
| Pino 39 | PB02 — GPIO / LCD SEG2 / PTC Y0 |
| Pino 40 | PB03 — GPIO / LCD SEG3 / PTC Y1 |
| Pino 41 | PB04 — GPIO / LCD SEG4 |
| Pino 42 | PB05 — GPIO / LCD SEG5 |
| Pino 43 | PB06 — GPIO / LCD SEG6 |
| Pino 44 | PB07 — GPIO / LCD SEG7 |
| Pino 45 | PB08 — GPIO / LCD SEG8 |
| Pino 46 | PB09 — GPIO / LCD SEG9 / PTC X0 |
| Pino 47 | PB10 — GPIO / LCD SEG10 / PTC X1 |
| Pino 48 | PB11 — GPIO / LCD SEG11 / PTC X2 |
Aplicações típicas
ATSAML22G16A-MUT é adequado para 6 aplicaçãos: Battery-Powered IoT Sensor Nodes, Smart Metering with LCD Display, Wearable Fitness Bands, Automotive Body Controllers, Industrial HMI with Segmented LCD, Battery-Powered Medical Devices.
Battery-Powered IoT Sensor Nodes
The ATSAML22G16A-MUT's 490 nA backup current with RTC retention and 39 µA/MHz active consumption make it ideal for IoT sensor nodes running on coin cells or 2x AA batteries. SleepWalking SERCOM peripherals allow the CPU to stay in deep sleep until a sensor interrupt fires, while the integrated 12-bit ADC with hardware oversampling supports direct connection to temperature, humidity, and gas sensors. Compared to Cortex-M4 alternatives, the M0+ core halves active energy while remaining fast enough for LoRaWAN/Sigfox protocol stacks.
Recomendado
Smart Metering with LCD Display
The ATSAML22G16A-MUT integrates an LCD controller supporting up to 8x40 segments with an on-chip charge pump, eliminating external LCD bias ICs in electricity, water, and gas meters. Combined with its 490 nA backup mode and 10+ year battery capability, it is purpose-built for utility metering. The ISO 7816 interface supports smart-card add-on modules, and the 32-bit Cortex-M0+ core handles metering algorithms, tariff logic, and wireless M-Bus or wM-Bus stacks within the 64KB Flash budget.
Recomendado
Wearable Fitness Bands
Wearables demand sub-50 µA average current for multi-day battery life, and the ATSAML22G16A-MUT delivers with Cortex-M0+ efficiency. The Peripheral Touch Controller (PTC) supports capacitive touch buttons and sliders without external ICs, while the integrated LCD segment driver powers always-on displays showing time, steps, and notifications. Its small QFN-48 (7x7 mm) footprint enables compact PCB layouts typical of wrist-worn form factors. Compared to Cortex-M4 BLE SoCs, the SAM L22 saves 30-40% system energy when BLE is offloaded to a companion radio.
Recomendado
Automotive Body Controllers
AEC-Q100 qualification makes the ATSAML22G16A-MUT suitable for non-safety automotive body electronics such as door modules, seat controllers, and HVAC panels. The 1.6V-3.6V supply range tolerates 12V battery transients when paired with a TVS clamp and LDO. The Cortex-M0+ core handles LIN bus stacks, PWM actuator control via TCC timers, and capacitive touch interfaces for sealed keypads. Compared to AEC-Q100 Cortex-M4 parts, the SAM L22 reduces BOM cost by 25% in body-domain applications where LCD and touch dominate.
Recomendado
Industrial HMI with Segmented LCD
Factory-floor HMIs require readable displays under wide temperature ranges and vibration, where segmented LCDs excel over TFT in cost and contrast. The ATSAML22G16A-MUT's 8x40-segment LCD controller and -40C to +85C operating range cover most industrial environments. The Cortex-M0+ core handles Modbus RTU, IO-Link stack, or EtherCAT slave protocols via the SERCOM interfaces, while the AES 256-bit engine secures authenticated firmware updates. Compared to TFT-based HMIs, the LCD variant costs 40% less at the BOM level.
Recomendado
Battery-Powered Medical Devices
Medical devices such as glucose meters, pulse oximeters, and portable ECG patches benefit from the ATSAML22G16A-MUT's ultra-low backup current (490 nA) and segment-LCD support, which together enable multi-month battery life on coin cells. The Cortex-M0+ deterministic interrupt response is sufficient for sensor sampling loops at kHz rates, while the 12-bit ADC with hardware oversampling reduces noise for photoplethysmography (PPG) measurements. The on-chip AES 256-bit engine supports secure patient data logging required by HIPAA-style guidelines.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATSAML22G16A-MUT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATSAML22G17A-MUT | ATSAML22G18A-MUT | ATSAML21G16B-MUT | ATSAML10E16A-MUT | ATSAML11D16A-MFT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-48 (7x7 mm) | QFN-48 (7x7 mm) - same | QFN-48 (7x7 mm) - same | QFN-48 (7x7 mm) - same | QFN-48 (7x7 mm) - same | QFN-48 (7x7 mm) - same |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M23 (TrustZone-M) |
| Flash | 64 KB | 128 KB | 256 KB | 64 KB | 64 KB | 64 KB |
| SRAM | 8 KB | 16 KB | 32 KB | 8 KB | 8 KB | 8 KB |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 48 MHz | 32 MHz | 32 MHz |
| Active Current | 39 µA/MHz | 39 µA/MHz | 39 µA/MHz | 35 µA/MHz | 30 µA/MHz | 40 µA/MHz |
| Backup Current (RTC) | 490 nA | 490 nA | 490 nA | 450 nA | 490 nA | 520 nA |
| LCD Controller | Yes (8x40 segments) | Yes (8x40 segments) | Yes (8x40 segments) | No | No | No |
| USB 2.0 Full-Speed | Yes (device/host) | Yes (device/host) | Yes (device/host) | Yes (device/host) | No | No |
| Unit Price (qty 1) | $3.85 | $4.10 | $4.50 | $3.75 | $3.20 | $3.95 |
Principais diferenciais
- Integrated segment LCD controller with on-chip charge pump (vs ATSAML21G16B-MUT)
- 490 nA ultra-low-power backup mode (vs ATSAMG55J19B-MUT)
- AEC-Q100 automotive qualification at Cortex-M0+ price point (vs ATSAML10E16A-MUT)
- Full USB 2.0 with embedded PHY and ISO 7816 smart-card interface (vs ATSAML11D16A-MFT)
Notas de projeto
The ATSAML22G16A-MUT has two supply domains - VDDIN (main digital 1.6-3.6V) and VDDANA (analog 1.6-3.6V). Decouple both domains with a 100nF ceramic capacitor placed within 5mm of each pin, plus a bulk 4.7µF ceramic at the supply entry. If using the integrated LCD charge pump, add a 1µF ceramic on VLCD. Avoid routing the analog ADC traces under switching nodes to preserve the 12-bit ADC SNR.
Estimated: The QFN-48 (7x7) package has a typical θJA of approximately 30°C/W on a 4-layer JEDEC test board. At maximum active load (32 MHz, all peripherals on, 39 µA/MHz, 3.3V), power dissipation is approximately 4.1 mW, so junction temperature rise is only 0.12°C above ambient - thermal management is rarely a concern. However, in enclosed industrial housings with no airflow, ensure ambient temperature stays below 85°C for reliable AEC-Q100-grade operation.
Solder the QFN-48 exposed pad (EP) directly to a flooded copper pad on the top layer with 9 thermal vias (0.3mm drill, 0.6mm pitch) connecting to inner ground planes. This both grounds the EP electrically and reduces θJA by 30-50%. Keep the SWD/SWCK pins (PA30/PA31) routed with no more than 50mm trace length and bypass them with 22Ω series resistors only if you observe SWD communication errors.
The Cortex-M0+ core does NOT have a hardware divide instruction - using `/` or `%` in tight loops on 32-bit integers can stall for 32 cycles. Use libgcc's __aeabi_uidiv or pre-computed constants instead. Also note that GPIO slew-rate and drive-strength settings must be configured before enabling high-speed SERCOM or I2S lines, otherwise signal integrity violations will appear on the bus.
When using the integrated USB 2.0 full-speed transceiver, the USB DP/DM traces must be 90Ω differential, length-matched to within 150 mil, and routed over a continuous ground plane. Place the ESD protection array (e.g., USBLC6-2) within 5mm of the connector. Without proper routing, USB compliance failures occur at the eye-diagram test, especially at 12 MHz Full-Speed edge rates.
Informações de conformidade
RoHS and REACH compliant per Microchip material declaration. AEC-Q100 Grade 1 qualified for automotive applications. Halogen-free per IEC 61249-2-21. Conflict minerals compliant per Section 1502 of the Dodd-Frank Act.